A group of international people on an expedition ship in Antarctica marched in solidarity with the Women’s March on Washington, and other sister marches around the world, according to a post on actionnetwork.org.

Zunas posted a picture of the group holding signs ranging from “penguins for peace” to “save the planet.” Zunas, of Oakland, Calif., told the Independent she felt compelled to organize the march in response to President Trump's apparent plans to roll back Obama-era environmental policies.

“I set it up because I wanted to participate in the Women’s March,” Zunas told the Independent. “I spent a month after the election mourning the impending damage to the Earth that will be done. I felt like I needed to do something to be part of the global movement.”

Zunas told the Independent the marchers range in age from 24 to 87 and include both men and women.

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Thousands of attendees fill the streets during the Women's March on Washington in Washington, DC on Jan. 21, 2017, one day after the inauguration of President-elect Donald J. Trump.. Jasper Colt, USA TODAY

Protestors chat anti-Trump slogans during the Women's March on Washington in Washington, DC on Jan. 21, 2017, one day after the inauguration of President-elect Donald J. Trump. Robert Hanashiro, USA TODAY

Dressed in the iconic American wartime propaganda poster produced by J. Howard Miller, Kelly McMillan of Durham, NC marches by the Capital Building carrying the American flag. Suchat Pederson, USA TODAY

Jan 21, 2017; Washington, DC, USA; A general view during the women's march on Washington one day after the inauguration. Mandatory Credit: Robert Deutsch-USA TODAY NETWORK ORIG FILE ID: 20170121_jla_usa_045.jpg Robert Deutsch, Robert Deutsch-USA TODAY

Demonstrators march on the National Mall in Washington, D.C., on Jan. 21, 2017.
Hundreds of thousands of protesters spearheaded by women's rights groups demonstrated across the U.S. to send a defiant message to President Trump. Jim Watson, AFP/Getty Images

Members of the '9 Ducklings' gather on the National Mall before the Women's March on Washington rally in Washington, D.C., on Jan. 21, 2017, one day after the inauguration of President Trump Thomas P. Costello, USA TODAY